Wire-stretching machine



(Model.) G. HANN 8v AgTHOMA'.

WIRE STEBTGHING MACHINE.

No. 355,014. Patented 1360.28, 1886.

Mn/6886s,

NITED STATES PATENT Tirion.

-wlaE-STRETCHING MACHINE.;

SPECIFICATION forming part of Letters Patent No. 355,014, dated December 28, 1886- y Application tiled July 7, 1885. Serial No. 170,871. (Model.)

To all whom it may concern..-

Be it known thatwe, GEORGE HANN and ANTON THOMA, both citizens of the United States, and residents of Three Rivers, St. Joseph county, Michigan, have invented a new, useful, and valuable Improvement in Nire- Stretching Machines 5 and we do hereby declare that the following is a full, clea'r, and exact description of the construction and operation of the same, as will be seen from the aecompanying drawings.

This invention relates to that classof wire- Vstretchers which are anchored to the post at one end, and which employ a wire-holder connected to a lever, and dogs which traverse a notched bar.

The improvements are pointed out in the following description and claim.

In the accompanying drawings, forming a part of this specification, Figure 1 is a plan with the post in cross-section; Fig. 2, a side elevation; Fig. 3, asection on line 2 2 in Fig. l; and Fig. 4 shows, lettered, details enlarged from Fig. l.

Referring to thelctters of reference marked on the drawings, B is the ordinary notched bar in such constructions, having t-he notches e e on each side.

b is an anchor pivotally attached to one end ofthe bar B for anchoring the device to the fence-post A. The hairpin-shaped rod C receives the bar B between its two arms. The free ends of the arms of the rod C are pivotall y attached at s s to the forked end of the lever D. This forked end of said lever D straddles the notched bar B. The coupling f,which is attached to the bowed end of the hair-pin rod C, is provided with the ordinary eccentric grippers i i' for holding the wire u.

T he dogs a a, which engage the notches e e of the bar B, are pivoted in the ordinary inane ner on each side of the bar B to the forked end ferent relation with the lever D, notches e e, anddogs oa.. It is also essential that the fulcruni or pivotal points s s be always kept at between the dogs and the sides of `the notched bar B, and bringing the free end of the springs in contact with the sides of the notched bar in a manner to slide over said sides during theotal points s s (which points are in fact the.

fulcrum or axis of the lever D) always at the -longitudinal center of the notched bar B.

In thev operation, which is similar to that of prior devices, the lever D is swungjforward and back, and the ends o of the dogs alternately engage the notches e e on opposite sides.

At d, Fig. 1, is shown another eccentric gripper for holding the end of a wire (not here shown) extending past the post from the opposite direction to that shown at a. 'The use of this, in connection with the wire-holdem' r, is to hold the ends of a wire which has been accidentally broken while the ends between the grippers l and r i' are spliced or twisted together. By the use of these two gri ppers or holders slack may be taken out of a wire which has been in use by clamping the wire at cl-and r i, severing the wire between the grippers, cutting off a piece and splicing the severed ends together. This use is not illustrated, but will be thoroughly understood by wire-fence builders.

We are aware that an anchored notched bar,

in connection with the draw-rod and a lever ICO what werclaim, and desire to secure by Letters bar to form yielding guides, substantially as Patent, is set forth. In a wire-stretcher of the style described, GEORGE HANN. the combination, with the notched bar, hair- ANTON THOMA. 5 pin rod, operating-lever, and dogs, of the dog- Witnesses:

springs having free ends forming a, sliding H. O. BLIss, contact with the notched sides of the notched i C. P. SMITH. 

